Do you need to refrigerate mustard and ketchup?

Although the natural acidity in both ketchup and mustard allows the products to be initially stored on a shelf, once a ketchup or mustard container is opened, it needs to be refrigerated. Refrigera...
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Mustard Mayo Ketchup Or Butter on your Sandwich?

What can I use to clean mustard& ketchup off of paint on a
vehicle?

Ketchup and mustard can be treated like any other mess on your car's paint. Mustard can do damage to your paint, so try to remove it as quickly as possible. If the ketchup or mustard are wet, wipe ...
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